JP4841800B2 - デジタルｄ級オーディオ増幅器 - Google Patents

デジタルｄ級オーディオ増幅器 Download PDF

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Publication number
JP4841800B2
JP4841800B2 JP2002520407A JP2002520407A JP4841800B2 JP 4841800 B2 JP4841800 B2 JP 4841800B2 JP 2002520407 A JP2002520407 A JP 2002520407A JP 2002520407 A JP2002520407 A JP 2002520407A JP 4841800 B2 JP4841800 B2 JP 4841800B2
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Japan
Prior art keywords
digital
amplifier
value
waveform
accumulator
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Expired - Fee Related
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JP2002520407A
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English (en)
Japanese (ja)
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JP2004507140A (ja
JP2004507140A5 (enrdf_load_stackoverflow
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アルリック、ジョン、ダブリュ．
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Publication of JP2004507140A5 publication Critical patent/JP2004507140A5/ja
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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/217—Class D power amplifiers; Switching amplifiers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
    • H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
    • H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H02M7/538—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a push-pull configuration
    • H02M7/53803—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a push-pull configuration with automatic control of output voltage or current
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
    • H03F1/303—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters using a switching device
    • H03F1/304—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters using a switching device and using digital means
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/52—Circuit arrangements for protecting such amplifiers
    • H03F1/523—Circuit arrangements for protecting such amplifiers for amplifiers using field-effect devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/217—Class D power amplifiers; Switching amplifiers
    • H03F3/2171—Class D power amplifiers; Switching amplifiers with field-effect devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/217—Class D power amplifiers; Switching amplifiers
    • H03F3/2175—Class D power amplifiers; Switching amplifiers using analogue-digital or digital-analogue conversion
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/03—Indexing scheme relating to amplifiers the amplifier being designed for audio applications
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/351—Pulse width modulation being used in an amplifying circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/78—A comparator being used in a controlling circuit of an amplifier

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
JP2002520407A 2000-08-14 2001-08-03 デジタルｄ級オーディオ増幅器 Expired - Fee Related JP4841800B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/638,465 2000-08-14
US09/638,465 US6498531B1 (en) 2000-08-14 2000-08-14 Digital class-D audio amplifier
PCT/US2001/024502 WO2002015393A2 (en) 2000-08-14 2001-08-03 Digital class-d audio amplifier

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2011097483A Division JP5342599B2 (ja) 2000-08-14 2011-04-25 デジタルｄ級オーディオ増幅器

Publications (3)

Publication Number Publication Date
JP2004507140A JP2004507140A (ja) 2004-03-04
JP2004507140A5 JP2004507140A5 (enrdf_load_stackoverflow) 2005-03-17
JP4841800B2 true JP4841800B2 (ja) 2011-12-21

Family

ID=24560146

Family Applications (2)

Application Number Title Priority Date Filing Date
JP2002520407A Expired - Fee Related JP4841800B2 (ja) 2000-08-14 2001-08-03 デジタルｄ級オーディオ増幅器
JP2011097483A Expired - Fee Related JP5342599B2 (ja) 2000-08-14 2011-04-25 デジタルｄ級オーディオ増幅器

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP2011097483A Expired - Fee Related JP5342599B2 (ja) 2000-08-14 2011-04-25 デジタルｄ級オーディオ増幅器

Country Status (7)

Country Link
US (1) US6498531B1 (enrdf_load_stackoverflow)
EP (1) EP1310041B1 (enrdf_load_stackoverflow)
JP (2) JP4841800B2 (enrdf_load_stackoverflow)
KR (1) KR100847075B1 (enrdf_load_stackoverflow)
AT (1) ATE380409T1 (enrdf_load_stackoverflow)
DE (1) DE60131755T2 (enrdf_load_stackoverflow)
WO (1) WO2002015393A2 (enrdf_load_stackoverflow)

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US6819912B2 (en) * 2001-11-05 2004-11-16 Freescale Semiconductor, Inc. Variable frequency switching amplifier and method therefor
US7146015B2 (en) * 2001-12-12 2006-12-05 Motorola Inc. Frequency threshold audio activity detector
US7706545B2 (en) * 2003-03-21 2010-04-27 D2Audio Corporation Systems and methods for protection of audio amplifier circuits
WO2004086609A1 (en) * 2003-03-21 2004-10-07 D2Audio Corporation Systems and methods for protection of audio amplifier circuits
US7590251B2 (en) * 2003-03-21 2009-09-15 D2Audio Corporation Clip detection in PWM amplifier
US7929718B1 (en) 2003-05-12 2011-04-19 D2Audio Corporation Systems and methods for switching and mixing signals in a multi-channel amplifier
US7515072B2 (en) 2003-09-25 2009-04-07 International Rectifier Corporation Method and apparatus for converting PCM to PWM
KR100609266B1 (ko) * 2003-11-03 2006-08-04 삼성전자주식회사 폴트 감지 방법 및 이를 수행하기 위한 회로, 폴트에 따른파워앰프 회로 보호 방법 및 폴트를 감지하는 파워 앰프
KR101060359B1 (ko) * 2004-01-07 2011-08-29 알텍 랜싱, 에이 디비젼 오브 플랜트로닉스 인코포레이티드 펄스 폭 변조 증폭기 및 자동 이득 제어용 전원신호 제거장치와 방법
WO2005109631A1 (en) * 2004-05-10 2005-11-17 Koninklijke Philips Electronics N.V. Overcurrent limiting method and device
US7286010B2 (en) 2006-01-26 2007-10-23 D2Audio Corporation Systems and methods for over-current protection
EP1985014B1 (en) * 2006-02-07 2010-07-28 D2Audio Corporation Pwm feedback/feed-forward protection
US7957489B2 (en) * 2006-02-17 2011-06-07 Canon Kabushiki Kaisha Digital amplifier and television receiving apparatus
US7400191B2 (en) 2006-04-07 2008-07-15 Manuel De Jesus Rodriguez Switching power amplifier
FR2905774A1 (fr) * 2006-09-08 2008-03-14 Shaktiware Soc Par Actions Sim Generateur de tension programmable
US7576604B2 (en) * 2006-12-15 2009-08-18 Bin Xu All-digital class-D audio amplifier
US7391346B1 (en) 2007-02-05 2008-06-24 Sigmatel, Inc. Switching amplifier system and method
US7705672B1 (en) 2007-02-12 2010-04-27 Manuel De Jesus Rodriguez Buck converters as power amplifier
KR100855685B1 (ko) * 2007-04-02 2008-09-03 주식회사 디엠비테크놀로지 다이렉트 디지털 ｄ급 증폭기를 이용한 오디오 시스템
WO2009088886A2 (en) 2007-12-31 2009-07-16 Intersil Americas Inc. Systems and methods for improved over-current clipping
EP2096753B1 (en) * 2008-02-29 2011-11-30 STMicroelectronics (Grenoble) SAS Switching amplifier
WO2009142718A2 (en) * 2008-05-21 2009-11-26 Silicon Laboratories Inc. Predictive feedback compensation for pwm switching amplifiers
US20100188136A1 (en) * 2009-01-27 2010-07-29 Rockford Corporation Dynamic thermal management system and method
KR20110036371A (ko) 2009-10-01 2011-04-07 삼성전자주식회사 오디오 증폭기
US8391514B2 (en) 2010-06-14 2013-03-05 Parametric Sound Corporation Parametric transducer systems and related methods
KR101871360B1 (ko) * 2011-03-09 2018-06-26 삼성전자주식회사 오디오 신호 출력 방법 및 그에 따른 오디오 신호 출력 장치
US8421535B2 (en) * 2011-08-08 2013-04-16 Adamson Systems Engineering Inc. Method and apparatus for reducing distortion in Class D amplifier
ITRM20110609A1 (it) 2011-11-17 2013-05-18 St Ericsson Sa Digital class-d amplifier and digital signal processing method
WO2013106596A1 (en) * 2012-01-10 2013-07-18 Parametric Sound Corporation Amplification systems, carrier tracking systems and related methods for use in parametric sound systems
US8958580B2 (en) 2012-04-18 2015-02-17 Turtle Beach Corporation Parametric transducers and related methods
US8934650B1 (en) 2012-07-03 2015-01-13 Turtle Beach Corporation Low profile parametric transducers and related methods
US8903104B2 (en) 2013-04-16 2014-12-02 Turtle Beach Corporation Video gaming system with ultrasonic speakers
US8988911B2 (en) 2013-06-13 2015-03-24 Turtle Beach Corporation Self-bias emitter circuit
US9332344B2 (en) 2013-06-13 2016-05-03 Turtle Beach Corporation Self-bias emitter circuit
NL2016605B1 (en) 2016-04-14 2017-11-02 Axign B V Digital audio converter and amplifier controller.
CN108718198B (zh) * 2018-08-07 2023-11-03 上海艾为电子技术股份有限公司 一种数字模拟转换器

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58157221A (ja) * 1982-03-13 1983-09-19 Nippon Gakki Seizo Kk パルス幅変調回路
JPH06303049A (ja) * 1993-04-14 1994-10-28 Mitsubishi Electric Corp Ｐｗｍ増幅器
JP2000500625A (ja) * 1995-11-13 2000-01-18 アポジー・テクノロジー・インコーポレイテツド 三状態パワースイッチへの小さい入力信号の線形化のためのデジタル信号処理

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JPS593611U (ja) * 1982-06-29 1984-01-11 ヤマハ株式会社 パルス幅変調増幅回路
US4683439A (en) * 1986-01-09 1987-07-28 Honeywell Inc. Digitally driven switching power amplifier system
US5406284A (en) 1992-12-31 1995-04-11 Monolith Technologies Corporation Methods and apparatus for the quantization and analog conversion of digital signals
WO1994021036A1 (en) * 1993-03-02 1994-09-15 Kirn Larry J Switching amplifier with impedance transformation output stage
JPH06303061A (ja) * 1993-04-16 1994-10-28 Sony Corp 電子機器の調整装置
CA2109755C (en) 1993-11-23 2004-11-02 John Barry French Composite bridge amplifier with output overload and thermal protection
US5559467A (en) 1995-01-27 1996-09-24 The Regents Of The University Of California Digital, pulse width modulation audio power amplifier with noise and ripple shaping
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US5973368A (en) 1996-06-05 1999-10-26 Pearce; Lawrence G. Monolithic class D amplifier
JP3514978B2 (ja) * 1998-07-31 2004-04-05 シャープ株式会社 ディジタルスイッチングアンプ
US6127885A (en) * 1998-08-31 2000-10-03 Cello, Limited Class D amplifiers including transition zone modulation
JP2002171140A (ja) * 2000-12-01 2002-06-14 Mitsubishi Electric Corp オーディオ信号増幅出力回路

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58157221A (ja) * 1982-03-13 1983-09-19 Nippon Gakki Seizo Kk パルス幅変調回路
JPH06303049A (ja) * 1993-04-14 1994-10-28 Mitsubishi Electric Corp Ｐｗｍ増幅器
JP2000500625A (ja) * 1995-11-13 2000-01-18 アポジー・テクノロジー・インコーポレイテツド 三状態パワースイッチへの小さい入力信号の線形化のためのデジタル信号処理

Also Published As

Publication number Publication date
EP1310041B1 (en) 2007-12-05
US6498531B1 (en) 2002-12-24
WO2002015393A2 (en) 2002-02-21
JP5342599B2 (ja) 2013-11-13
JP2004507140A (ja) 2004-03-04
JP2011142697A (ja) 2011-07-21
KR100847075B1 (ko) 2008-07-18
DE60131755D1 (de) 2008-01-17
ATE380409T1 (de) 2007-12-15
DE60131755T2 (de) 2008-11-13
EP1310041A2 (en) 2003-05-14
WO2002015393A3 (en) 2002-05-10
KR20030031154A (ko) 2003-04-18

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